Niobium Modified SBA15 was synthesized by the wetness impregnation with niobic acid as precursor. The desulfurization of FCC gasoline was carried out with the mass fraction of 30% H2O2 as the oxidant, NbSBA15 as the catalyst, and N, Ndimethyl formamide(DMF) as the extractant. The sulfur removal rate and yield of FCC gasoline can reach 95.4% and 83.8% under the following conditions: reaction temperature: 60 ℃, reaction time: 60 min, weight ratio of catalyst/FCC gasoline: 5%, mole. ratio of oxidant/sulphur compounds 3∶1, and volume ratio of solvent (DMF) to oil was 10.

Adsorption removal of basic nitrogen compounds in the shale diesel with USY molecular sieves was investigated. The effect of adsorption time, temperature and adsorbent/oil weight ratio on the nitrogen removal rate was studied, and found that highest nitrogen removal rate (30.73%) are obtained under the following conditions: the adsorbent to oil weight ratio of 0.03, the adsorption temperature of 120 ℃, the adsorption time of 30 min. Simultaneously, the static equilibrium adsorption capacity can reach 27.2 mg/g. After regenerated for several cycles, the removal rate of basic nitrogen compounds is still more than 25%. Adsorption kinetics suggested that adsorption denitrogenation follows the second-order equation.